Steven Roselle is still working away on his Unwrap UVs Tool An interactive tool for automatically unwrapping UVs and adds an update for download. The Unwrap UV’s tool can be used to quickly and easily create UVs shells for a variety of objects ranging from roads to pipes to horns to trees to faces. Shells can be automatically unwrapped in various ways based on different options.
If you haven’t been following the progress of the Unwrap UV Tool for maya, you can find his other post here that will catch you up. Also, the MEL script is available for download to try right here.